One Bowl Vegan Funfetti Cupcakes

Name: One Bowl Vegan Funfetti Cupcakes
Prep time: 35 min
Cook time: 25 min
Total time: 1 h
Cuisine: American
Ingredients: 1 scant cup non-dairy milk ((we used unsweetened plain almond milk)); 1 tsp apple cider vinegar; 1/2 cup neutral oil ((such as avocado)); 1 tsp pure vanilla extract; 1 scant cup organic cane sugar; 1 1/2 cups unbleached all-purpose flour; 1 1/2 tsp baking powder; 1/2 tsp baking soda; 1/4 tsp salt; 1/3 cup rainbow sprinkles* ((plus more for topping)); 1/2 cup vegan butter ((SOFTENED // 1 stick yields 1/2 cup - we like Earth Balance and Miyoko's brands)); 1/4 tsp vanilla extract; 2 1/2 - 3 cups powdered sugar ((SIFTED)); 1 splash non-dairy milk ((optional // almond and coconut are best!))