Eggless Orange Cake

Preheat the oven to 350 degrees F (175 degrees C). Grease an 8-inch cake pan.

Mix cake flour, baking powder, and sugar together in a large bowl and make a well in the middle.

Combine condensed milk, orange juice, orange zest, butter, sour cream, and vanilla extract together in a separate bowl. Pour mixture into the flour well. Mix by hand using a whisk until smooth, about 5 minutes.

Combine baking soda and vinegar together in a small cup until bubbling. Fold into the batter using a spatula. Pour batter into the prepared pan and allow to sit for 5 minutes.

Bake in the preheated oven until a toothpick inserted in the center comes out clean, 30 to 45 minutes. Allow to cool.