This is THE BEST pie crust and THE TASTIEST filling and THE MOST AWESOME buttery streusel topping. Now that you know how I really feel, go ahead and give this a whirl. Oh, and when I call for yams, I’m talking about the ones with the orange insides that everyone calls sweet potatoes but are actually yams!). Prep plan: Give this baby ample time to cool down, because a settled sweet potato pie is actually a denser, richer, more delicious one.