Combine the first 10 ingredients in a small sauce pan. Stir mixture and bring to a boil over medium-high heat. Reduce heat to low, and simmer for 5 minutes. Remove crushed garlic cloves with a slotted spoon. In a small dish, combine remaining 1/4 cup of water with the cornstarch and stir until cornstarch is dissolved. Add cornstarch mixture to the Bourbon Peppercorn Glaze while whisking. Continue to stir and bring mixture back to a boil or until thickened. Remove from heat, and serve immediately on your favorite steak. Bourbon Peppercorn Sauce can be kept refrigerated in an air-tight container for up to 5 days. Just reheat to serve!