In a saucepan over medium heat, brown ground sausage; drain off fat.
Add maple syrup, olive oil, water and cayenne pepper; heat through. Stir in flour and mix until dissolved; cook 1 minute. Slowly add milk and cook, stirring occasionally, until gravy is thick and bubbly. Add salt and pepper to taste.
Cut warmed buttermilk biscuits in half. Spread 1 tsp (5 mL) maple syrup over each half and top with gravy. Makes 4 servings.