Heat oil in a large saucepan. Stir in onion and garlic and cook over medium heat until onions are tender, about 5 minutes. Stir in beans, whiskey and cumin. Cook until bubbly and heated through. Mash beans lightly; stir in lemon juice and hot pepper sauce. Serve warm or at room temperature in a serving dish topped with your choice of the suggested toppings. Makes about 2 1/2 cups.