Ingredients

• 2 cups all-purpose flour
• 2/3 cup soy protein powder (such as MLO®)
• 1/3 cup oat flour
• 1 cup white sugar
• 1 cup brown sugar
• 1/2 cup plain Greek yogurt
• 1/2 cup butter, softened
• 2 teaspoons vanilla extract
• 2 tablespoons milk, or more as needed
• 2 cups chocolate chips

Instructions

1. Combine all-purpose flour, soy protein powder, and oat flour together in a bowl.
2. Beat white sugar, brown sugar, yogurt, and butter together in a large bowl with an electric mixer until smooth and creamy. Add vanilla extract. Stir in flour mixture. Mix in milk, 1 tablespoon at a time, until batter is thick and smooth. Fold in chocolate chips.
3. Roll batter into 1-inch balls with your hands. Arrange on a baking sheet. Transfer to the freezer and chill until firm, about 1 hour, or in the refrigerator, 2 to 3 hours.