Homemade Whole-Wheat Sweet Potato Ravioli

INGREDIENTS

1 1/2 cups

whole-wheat flour (freshly ground not recommended for this recipe)

eggs

sweet potato (large, or 2 small (1 2/3 pounds total))

2 tsp

butter (+ 5 tablespoons, divided)

salt (to taste)

pepper (to taste)

1/2 cup

sage (fresh (just the leaves))

parmesan cheese (for garnish (optional))