Fig Ancho Guinness BBQ Sauce

Ingredients

• 4 ancho chiles, rehydrated in 4 1/2 cups hot water and the water reserved
• 12 figs, grilled, stemmed, and quartered
• 1/2 yellow onion, sliced
• 4 Tbsp. butter
• 1 1/2 cups brown sugar
• 1 (12-ounce) bottle (1 1/2 cups) stout
• 1 cup ketchup
• 1/2 cup white vinegar
• 1/2 cup cider vinegar
• 6 Tbsp. fig preserves
• 1 Tbsp. honey
• 1 Tbsp. kosher salt
• 1 tsp. coarse black pepper