Light and unbelievably crispy yeast waffles where the batter is made overnight, cooked in the morning, then topped with a warm pineapple pina colada topping and plenty of whipped cream!
Place water in a large bowl and dissolve yeast and sugar into water. Whisk to combine and let stand 5 minutes until foamy. Whisk in warm milk, melted butter, vanilla, salt, and flour until smooth. Cover bowl with plastic wrap and let sit at room temperature overnight.
The next morning, remove plastic wrap from bowl and whisk eggs, yogurt, agave,= and baking soda into batter. Cook waffles by 1/2 cupfuls in waffle maker according to manufacturers instructions. Keep waffles warm while you prepare the topping.
Make the topping: In a medium saucepan, whisk juice and cornstarch. Stir in pineapple and sugar and bring topping to a simmer over medium-high heat. Stir in rum if using and let topping simmer at medium heat until reduced and slightly thickened, about 10 minutes.
Serve waffles warm with warm pineapple topping and toasted coconut on top. Enjoy!