Nut Butter Crusted Parsnip Fries..These Fries Will Change Your Life... 3 med parsnips, 3T nut butter (I used 2T chunky peanut + 1T almond butter)* 1T extra virgin olive oil, 1/4tsp kosher salt ::Preheat oven to 400F. line a baking sheet with parchment paper. Peel/ cut parsnips strips. mix together nut butters, olive oil, salt. toss in bowl with your hands until fully coated. Line on baking pan and cook at 400F for 30-50 min. They were wonderful!