Eggless Vanilla Sponge Cake

Ingredients Butter 1/2 Cup Condensed milk 3/4 Cup Milk 1/2 Cup (8 tbs), or as needed to adjust batter consistancy, at room temperature Sugar 2 Tablespoon Vanilla extract 1 Teaspoon Vinegar 1 Teaspoon Baking powder 1 Teaspoon Baking soda 1 Teaspoon