- In large container 8 l (or 2-gallon heavy plastic bag) combine the beer, molasses, sugar, salt, garlic and sage, stirring to dissolve salt and sugar.
- Add the pork roast; seal bag and refrigerate 48 hours.
- Remove pork from refrigerator, drain off liquid (discard) and pat pork dry with paper towels.
- Prepare medium-hot banked fire in covered kettle-style grill.
- Place drip pan filled with water opposite the fire.
- Place pork over drip pan and grill over indirect heat, about 1 to 1 1/2 hours, until meat thermometer inserted reads 70°C (150°F).
- Remove pork from grill and let sit for 15 minutes before cutting between ribs to serve.
Nutrient analysis per 3-ounce serving: 211 calories, 23 g protein, 3 g carbohydrates, 12 g total fat, 4 g saturated fat, 70 mg cholesterol, 800 mg sodium, 52% calories from fat, 3% calories from carbohydrates