1. Boil pasta 2 minutes short of package instructions and drain. Reserve 1 cup of pasta cooking water.

2. In a large 12- to 14-inch skillet, add oil and saute onions, garlic, bacon, and chile to soften and slightly render bacon, about 2 minutes. Add the cabbage, lemon zest, and currants and cook to caramelize, then cook the cabbage until barely tender, about 6 minutes.

3. Add the vinegar, stirring to deglaze the pan. Add the pasta water, milk, and cheese. Stir to heat and melt cheese. Add the penne to the pan. Squeeze over half the lemon. Serve with extra grated cheese.