Eden Grinshpan's Whole-Roasted Sweet Potato with Sunflower Gremolata and Lemony Sour Cream

Name: Eden Grinshpan's Whole-Roasted Sweet Potato with Sunflower Gremolata and Lemony Sour Cream
Prep time: 10 min
Cook time: 2 h
Total time: 2 h 10 min
Ingredients: 1/4 cup Basil, fresh; 1 Basil, Fresh leaves; 1 For the sweet potatoes; 1 clove Garlic; 1 Lemon; 4 Sweet potatoes; 2 tsp Kosher salt; 1 Sea salt, Flaky; 1/2 Teaspon kosher salt; 8 tbsp Olive oil, extra-virgin; 1/4 cup Sunflower seeds; ---- For Serving ----