While the pasta is cooking, heat a large skillet (or wok) over medium- high heat and add 3 tablespoons olive oil.
Add the bacon and rosemary and sauté until the fat starts to render, about 1 minute. Add the garlic, chili flakes, and black pepper, to taste, and sauté, stirring often, until the garlic and bacon turn a rich golden brown, about 3 minutes. Watching carefully, to ensure it doesn’t burn.
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