Next stir in your orange zest and then rub in the butter with your fingers until the mixture resembles fine breadcrumbs. (greensofthestoneage.com)
Then transfer to a food processor, and process for 3 minutes until the peanuts are the consistency of fine breadcrumbs scraping down the sides of the bowl with a spatula as necessary. (lastingredient.com)
Keep cutting until the mixture seems like fine breadcrumbs. (eugeniekitchen.com)