Radish Leaf Pesto

2 handfuls of radish leaves
1 oz grated Parmesan or pecorino
1 oz nuts (almonds? pine-nuts?)
1 clove garlic or 1 scape
½ tsp lemon zest
2 Tbsp olive oil (plus more to taste)
salt, pepper, ground chili pepper (to taste)

 Put all the ingredients in a food processor and pulse until smooth. This produces a thick pesto; add more oil and pulse again to get the consistency you prefer. Use within a few days, or freeze. Pour a thin layer of oil on the surface for longest fridge life.

Recipe from Clotilde, Chocolate and Zucchini.