The key to fixing crumble topping is to understand what makes it tick - it's all about the ratio of sugar to flour and the you use. If your crumble is too pale, you can try browning it under the broiler for a few seconds (keep an eye on it, though - it can go from perfect to burnt in seconds!).
If your crumble is too dark, you can try dusting it with powdered sugar to balance out the color. And if it's just a bit...sad, you can try adding a bit more butter to give it a boost. It's all about experimentation and finding the right combination that works for you.
Now, here's a fun fact: did you know that the original crumble recipe dates back to World War II, when sugar was rationed and housewives had to get creative with their ingredients? It just goes to show that even the most unlikely of desserts can have a rich history.
Whole Baked Apples with Crumb Topping - Grandbaby Cakes
