Chestnut Ravioli With Sage Browned Butter

Ingredients

• 1 cup roasted, shelled, and skinned chestnuts (1/2 lb in shell or 7 oz bottled whole; see notes)
• 2 oz sliced pancetta or bacon, finely chopped
• 7 tablespoons unsalted butter
• 1/4 cup finely chopped onion
• 1 large garlic clove, smashed
• 1/4 cup water
• 1 granny smith apple
• 2 tablespoons finely grated parmesan cheese
• 1 tablespoon finely chopped fresh flat-leaf parsley
• 48 wonton wrappers (12-oz package)
• 1 tablespoon fresh lemon juice
• 1 tablespoon finely chopped fresh sage
• a 2 3/4-inch round cookie cutter