Instructions:

Combine yeast and water. Combine the melted butter with milk, salt, and sugar. Now add the yeast mixture to butter and milk combination.

Add the flour to this mixture until the dough looks a little bumpy and no flour is visible. Cover the bowl with plastic wrap and place on the counter overnight. The dough will rise.

The next morning, beat the eggs together and add the batter along with the baking soda until it's completely mixed together.

Spray the waffle maker with vegetable oil before heating and measure 1/2 cup of batter in the middle and shut the lid. Keep flipping the cast iron pan until the waffle is cooked on both sides. If yours is an electric waffle maker, follow the manufacturer's directions.