Homemade Basil Pesto

2 cups fresh basil leaves, chopped
1/2 cup pine nuts (roasted walnuts are a great substitute)
1 cup freshly grated Parmesan Reggiano cheese (Romano is also a good substitute) 
4 cloves fresh garlic 
1/3 cup olive oil
1 T fresh squeezed lemon juice 
1/2 tsp. coarse kosher salt
6-7 grinds fresh ground pepper

Place all ingredients in either a large mortar/pestle, or a food processor and grind.