Banana Split with flour

1 1/2 cups granulated sugar 1 1/2 cups room-temperature unsalted butter 2 teaspoons vanilla extract 5 large eggs 3 cups unbleached self-rising flour 3/4 cup[...]

1 (14 ounce) can sweetened condensed milk (NOT evaporated milk) 1/2 cup sour cream 6 tablespoons lemon juice , divided 1 teaspoon vanilla extract 1/2 cup[...]

1 (8 ounce) can crushed pineapple 2 cups water 1 (3 ounce) package lemon gelatin (jello or like) 8 large marshmallows 2 bananas , sliced 2 teaspoons lemon[...]