Heat a pan over medium heat and add the oil and garlic. Sauté until fragrant - 1-2 minutes. Then add your mustard while mixing to keep it from burning.
1 tablespoon oil, 1 tablespoon garlic , ½ teaspoon Dijon mustard
Deglaze the pan by adding the oat milk, lemon juice, lemon zest, salt, and pepper. Bring to a boil while whisking constantly.
1.5 cups oat milk, zest from 1 lemon, 1 tablespoon lemon juice, ¼ teaspoon pepper, ½ teaspoon salt
Add the gnocchi to the liquid and leave at a simmer on low. Let this cook as directed on the gnocchi package or until it floats to the surface and is soft. This is usually 5-7 minutes depending on the type of gnocchi.
9 oz gnocchi
After the gnocchi is soft, remove some of the sauce into a small bowl (2-3 spoonful's). Add the cornstarch to this and mix until a paste is formed. Add this back to the sauce along with the frozen peas.
2 teaspoon cornstarch, 1.5 cups petite sweet peas
Mix gently to combine. Let this cook for 2-3 minutes until the peas are soft and the sauce as thickened. If the sauce is too thick or thin, see post notes for troubleshooting.
To finish the sauce, remove from heat and add in the torn basil. Plate the gnocchi and top with pink peppercorn if desired.
¼ cup basil