Banana waffles with sour milk

Ingredients:

• 2 cups premium flour
• 3 tbsp. granulated sugar
• 2 tsp baking powder
• 1/4 teaspoon fine salt
• 2 large eggs
• 1 and 3/4 cups of sour milk or kefir, room temperature
• 1 overripe banana, mashed, + 1 banana for serving (optional)
• 4 tablespoons unsalted butter, melted and cooled, plus extra for greasing the waffle iron
• 1 teaspoon pure vanilla extract
• 0.5 cup heavy cream, very cold
• 2 tablespoons powdered sugar
• 0.5 cups toasted walnuts, chopped
• Maple syrup, for serving

Preparation:

1. In a large bowl, combine flour, granulated sugar, baking powder, and salt. Beat eggs in a medium bowl until foamy; add buttermilk, mashed bananas, 4 tablespoons butter, and vanilla extract and mix well.
2. Mix the liquid mixture with the dry mixture until completely incorporated, being careful not to overmix. Cover with plastic wrap and let the dough rest for 10 minutes.
3. Preheat a waffle iron to medium-high heat. Preheat the oven to 95°C.
4. Evenly grease the inside of the waffle iron with the remaining oil. Pour enough batter to lightly cover the surface of the waffle iron, 1/3 to 3/4 cup, depending on the size of the waffle iron. Note that the batter will spread once the lid is closed.
5. Cook until golden brown, 5-7 minutes. Repeat with the remaining butter and batter. Place the finished waffles in a warm oven while you cook the rest.
6. In a medium bowl, beat the cream with the powdered sugar until soft peaks form. Slice the remaining banana, if using. Serve the waffles topped with whipped cream, banana slices, and walnuts. Drizzle with maple syrup.