In a small bowl mix yeast, water and sugar. Let sit 5 minutes until bubbly.
Pour yeast and water mixture into a large bowl and add oil and salt.
Mix in flour, one cup at a time. Stir until dough comes together.
Knead dough on lightly floured surface until soft.
Cover and let rest 10 minutes.
Divide dough into 4 sections.
Shape each dough section into a heart by pressing it into a circle then cutting a small slit in it to form a heart.
Place each heart on a baking sheet lined with parchment paper and sprinkled with corn meal.
Poke dough with a fork to prevent bubbles when baking.
Top with sauce, cheese and pepperoni.
Bake at 450 degrees for 12-15 minutes, or until golden brown.
Mix butter and garlic powder. Brush garlic butter over crust.