1 cup chopped toasted walnuts (optional)
1 tsp. vanilla extract
1/4 cup milk
1/4 cup plain yogurt
1 1/2 cups (363g) mashed bananas (about 4 medium bananas)
2 large eggs
1 cup (200g) sugar (142g for cane sugar)
1/2 cup (113g) salted butter, softened at room temperature
1 tsp. salt
1 tsp. baking soda
2 1/2 cups (300g) cake flour