• Skip to primary navigation
  • Skip to main content
Mamá Maggie's Kitchen
  • Recipes
    • Appetizers
    • Beef
    • Breakfast
    • Chicken
    • Desserts
    • Drinks
    • Pork
    • Seafood
    • Side Dishes
    • Soups
    • Vegetarian
    • Healthy
    • Mexican
    • Holiday Recipes
    • Learn
  • Cookbooks
  • Shop
  • Courses
    • Tamales
menu icon
go to homepage
  • Home
  • Recipes
  • Cookbooks
  • Courses
  • Shop
    • Facebook
    • Instagram
    • Pinterest
    • Twitter
    • YouTube
  • search icon
    Homepage link
    • Home
    • Recipes
    • Cookbooks
    • Courses
    • Shop
    • Facebook
    • Instagram
    • Pinterest
    • Twitter
    • YouTube
  • ×

    Home » Recipes » Drinks » Agua de Avena (Oat Water)

    Agua de Avena (Oat Water)

    Last Updated February 17, 2023. Originally Posted February 17, 2023 By Maggie Unzueta

    This post may include affiliate links. As an Amazon Associate I earn from qualifying purchases.

    Stay hydrated with this yummy Agua de Avena (or oat water). Only a handful of ingredients are needed to put together this wonderfully refreshing drink.
    Jump to Recipe Print Recipe
    Agua de Avena (or Oat Water) served with a cinnamon stick in a glass cup.
    Agua de avena served with cinnamon stick in a glass cup.
    A glass with Agua de Avena placed on a wood cutboard next to a bowl of dried oats.
    Agua de Avena served in a crystal glass next to a bowl with dried oatmeal.
    Agua de Avena served in a crystal glass next to a bowl with dried oatmeal.

    Agua de Avena is a yummy agua fresca made with oats. It goes great with just about any Mexican recipe. 

    Often referred to as Horchata de Avena, it requires soaking the main ingredient as in this authentic Horchata recipe.

    Many people claim that it helps lose weight while others drink it for its beneficial nutrients. 

    Naturally vegan, plant-based, and incredibly easy to make. Be sure to serve with plenty of ice. 

    Ingredients

    The ingredients needed to make oat water labeled and sitting on a white marble surface.
    • oatmeal
    • water
    • vanilla 
    • ground cinnamon
    • sugar substitute, to taste

    Rolled oats or old-fashioned oats work best in this recipe. Using quick oats or instant oats will result in a mushy texture. 

    Use a sugar substitute like Stevia or Monk Fruit, or honey. 

    To make it creamier, add sweetened condensed milk. 

    Instructions

    Making the Agua de Avena Mixture
    • Mix the oatmeal with 1 cup of water. 
    • Cover the bowl with plastic wrap. 
    • Soak the oats overnight in the fridge. 
    • The next morning, discard the water used to soak the oats. 

    The oatmeal will absorb some of the water, but not all of the liquid. Then strain and rinse the soaked oats with clean water. 

    Put the oatmeal in a blender. 

    Then add vanilla, cinnamon, sugar substitute, and the rest of the water. 

    Agua de Avena mixture in a blender
    • Blend and serve. 

    Taste for good measure. Add more sugar, if needed. 

    You’ll notice immediately that it’s not too sweet. If you like it sweeter, adjust to your liking. 

    Agua de Avena served in a glass cup

    Garnish with a little cinnamon on top. Chill and keep refrigerated.

    Variations:

    Dissolve a spoonful of instant coffee for a little coffee flavor. 

    Or, chocolate powder for a chocolate-y taste. 

    Try blending it with fruit – mango, strawberries, or bananas – for flavor and sweetness. 

    A glass with Agua de Avena placed on a wood cutboard next to a bowl of dried oats.

    Oat Milk vs Oat Water

    Oat milk has a finer texture because the oats are discarded. Oat Water (or agua de avena) is thicker and somewhat chunkier because the oats are blended and included in the drink. 

    Storing Instructions:

    Place any leftovers in an airtight container for up to 3 days. 

    To freeze, place in a freezer-safe, plastic bag. Remove as much air as possible. Store for up to 3 months. Thaw in the fridge overnight and consume right away, or within 2 days. The texture will be grainier and mushier. 

    Agua de Avena served in a glass cup

    More Agua Fresca Recipes:

    • Cucumber Agua Fresca
    • Agua de Pina
    • Agua de Fresa
    • Agua de Melon

    Skip the soda and sip on this refreshing Agua de Avena. For breakfast, lunch, dinner, or as a snack, there’s no wrong way to enjoy this drink. ¡Buen provecho! 

    Hungry for More

    Be sure to subscribe to my newsletter and follow along on Facebook, Instagram, Pinterest, Twitter for my latest recipes and videos.

    Agua de Avena served in a crystal glass next to a bowl with dried oatmeal.

    Agua de Avena (Oat Water)

    Stay hydrated with this yummy Agua de Avena (or oat water). Only a handful of ingredients are needed to put together this wonderfully refreshing drink.
    5 from 29 votes
    Print Pin Rate
    Course: Drink
    Cuisine: Mexican
    Prep Time: 1 day 10 minutes
    Cook Time: 0 minutes
    Total Time: 1 day 10 minutes
    Servings: 4 cups
    Calories: 46kcal
    Author: Maggie Unzueta

    Ingredients

    • 1 cup oatmeal
    • 4 1/2 cups water (plus more for rinsing)
    • 1 tsp vanilla extract
    • 1 tsp ground cinnamon
    • sugar substitute (such as Stevia)

    Instructions

    • Mix the oatmeal with 1 cup of water
    • Cover the bowl with plastic wrap.
    • Soak overnight in the fridge.
    • The next morning, you'll see that the oatmeal will have absorbed some of the water.
    • Discard the water used to soak the oats.
    • Strain and rinse the soaked oats with clean water.
    • Put the oatmeal in a blender.
    • Add vanilla, cinnamon, sugar substitute, and the rest of the water.
    • Blend until smooth.
    • Serve over ice.

    Notes

    Rolled oats or old-fashioned oats work best in this recipe. Using quick oats or instant oats will result in a mushy texture. 
    Use a sugar substitute like Stevia or Monk Fruit, or honey. 
    To make it creamier, add sweetened condensed milk. 

    Nutrition

    Calories: 46kcal | Carbohydrates: 8g | Protein: 2g | Fat: 1g | Saturated Fat: 0.2g | Polyunsaturated Fat: 0.3g | Monounsaturated Fat: 0.3g | Sodium: 16mg | Potassium: 45mg | Fiber: 1g | Sugar: 0.3g | Vitamin A: 1IU | Vitamin C: 0.02mg | Calcium: 18mg | Iron: 1mg
    Tried this recipe?Mention @MamaMaggiesKitchen or tag #MamaMaggiesKitchen!

    Filed Under: Agua Frescas, Drinks, Mexican, Recipes

    About Maggie Unzueta

    Maggie Unzueta is the writer/blogger, photographer, recipe developer, videographer, and creator of In Mama Maggie's Kitchen. She has been developing easy and authentic Mexican food, Mexican-inspired recipes, and traveling tips since 2010. From family recipes to her extensive travels throughout Mexico, she brings traditional Mexican flavors from South of the Border and into your kitchen. Maggie has been featured in notable culinary websites and other media outlets. For more details, check out her About page.

    Reader Interactions

    Leave a Reply Cancel reply

    Your email address will not be published. Required fields are marked *

    Recipe Rating




    Footer

    ↑ back to top

    About

    • About Maggie
    • Privacy Policy
    • Cookie Policy

    Newsletter

    • Sign Up! for emails and updates

    Contact

    • PR/ Advertise
    • Email maggie @ mamamaggieskitchen.com