Garlicky, Spicy Gochujang Corn on the Cob

Name: Garlicky, Spicy Gochujang Corn on the Cob
Ingredients: 3 sweet corn (grilled and cut into ribs); 4 cloves garlic (finely chopped); 2 tablespoon gochujang; 0.25 cup water; 0.5 stick butter; 2 tablespoon black pepper (roughly grounded); salt (to taste)