Apple Cider Doughnut Cake

Name: Apple Cider Doughnut Cake
Prep time: 15 min
Cook time: 45 min
Total time: 1 h
Cuisine: American
Ingredients: 1 15.25 ounce box Yellow cake mix or Spice Cake Mix; 1 cup apple cider (NOT apple juice and NOT apple cider vinegar); ½ cup apple sauce (we used cinnamon apple sauce, not chunky); 3 large eggs (room temperature); ¼ tsp cinnamon (more if you like it really cinnamony! ); 1 tbsp brown sugar; 1 tsp vanilla; 2 tablespoons cinnamon (depending on how much cinnamon you prefer); ¼ cup sugar; ¼ cup melted butter