Make the base mixture for one batch: in a large bowl combine 2 cups old-fashioned rolled oats, 2 cups milk (dairy or plant-based), 1 tsp vanilla extract, 1/2 cup yogurt (optional), 1 tbsp chia seeds, and 2 tbsp maple syrup or honey (optional). Stir until evenly combined.

Each flavor below uses one full base batch. Choose which variation to make and follow its steps.

Chocolate Banana variation: add 2 medium bananas, mashed, and 1/4 cup chocolate hazelnut spread to the prepared base. Stir to combine, then divide the mixture evenly into 4 containers or jars with lids. Refrigerate at least 6–8 hours. If desired, sprinkle 2–3 tbsp mini chocolate chips or chopped peanuts on top before serving.

Pineapple Coconut variation: when making the base, use coconut milk in place of the 2 cups milk. Add 1 1/2 cups fresh pineapple, diced (or canned in juice, drained) and 1/4 cup shredded coconut to the base. Stir to combine, divide evenly into 4 containers or jars with lids, and refrigerate at least 6–8 hours. If desired, top with additional diced pineapple and shredded coconut before serving.

Strawberry Peanut Butter variation: add 1 1/2 cups fresh strawberries, diced, and 4 tbsp peanut butter to the prepared base. Stir to combine, divide evenly into 4 containers or jars with lids, and refrigerate at least 6–8 hours. If desired, top with strawberry jam and/or an extra drizzle of peanut butter before serving.

Apple Cinnamon variation: melt 2 tsp butter in a skillet over medium heat. Add 1 large apple, diced (about 1 1/2 cups), and 1 tsp ground cinnamon; cook 3–4 minutes, stirring, until the apple is softened. Remove from heat and let cool slightly. Stir the cooled cooked apple and 1/4 cup raisins or dried cranberries (optional) into the prepared base. Divide evenly into 4 containers or jars with lids and refrigerate at least 6–8 hours. If desired, top with 1/4 cup chopped walnuts before serving.

When ready to eat, stir each jar to combine, add any desired toppings, and enjoy.