Ingredients
2 cups mixed berries, such as raspberries and blackberries
1/2 cup sugar
3 cups whole-wheat flour
2 teaspoons baking powder
1 teaspoon kosher salt
4 large eggs
3 1/2 cups whole milk
1/2 cup extra-virgin olive oil
1/2 teaspoon baking soda
2 teaspoons pure vanilla extract
Greek yogurt and pure maple syrup, for serving
Preparation
Preheat a Belgian-style waffle iron. Toss berries with 1/4 cup sugar, lightly mashing some with the back of a spoon.
In a large bowl, whisk together flour, baking powder, and salt. In another bowl, whisk together eggs, milk, oil, remaining 1/4 cup sugar, baking soda, and vanilla. Whisk wet ingredients into dry mixture just until combined.
Ladle 1 cup batter into waffle iron. Cook until golden and crisp, about 6 minutes. Repeat with remaining batter, whisking between batches for even cooking. Serve warm, with yogurt, macerated berries, and syrup.