I've made this pesto 3 or 4 times this summer already - it's amazing spread on hearty whole grain toast and topped with cherry tomatoes.
This recipe is from Vitamix - but I think it would work in a good blender or food processor.
Basil Walnut Pesto
Yield: 1 c (240 ml)
1/4 cup (60 ml) olive oil
1/4 cup (25 g) grated Parmesan cheese
2 garlic cloves, peeled
2 cups (80 g) fresh basil leaves
1/4 cup (30 g) walnuts
1 teaspoon lemon juice
1/2 teaspoon salt
Place all ingredients into the Vitamix container in the order listed and secure lid.
Select Variable 1.
Turn machine on and slowly increase to Variable 7.
Blend for 45 seconds-1 minute, using the tamper to press ingredients into the blades.
Recipe yields enough sauce to coat one pound of pasta
Note - this recipe works better when doubled so that the Vitamix tamper can reach the ingredients - and it's so good you will eat it all up fast!