Add More Spices: An easy way is to simply add more of the spices already in the curry. More cumin, coriander, turmeric, cinnamon, clove, etc will intensify the flavors. Just stir in and let cook for 2-3 minutes. Chili Peppers/Powder: Dried or fresh chilies are perfect for giving your curry some heat. Add finely chopped chilies or a pinch of cayenne or chili powder at the end. Add just a little bit at a time so you don't overdo it. Garam Masala: This classic Indian spice mix packs warm, aromatic flavors like cinnamon, nutmeg, cumin, and bay leaves. Sprinkle some on top of your finished curry. Fresh Herbs: Cilantro, basil, mint brighten up a curry. Chop and stir into your cooked curry just before serving. The freshness balances the rich sauce. Lemon/Lime Juice: Right before eating, drizzle some fresh lemon or lime juice over your curry. This adds nice acidity and lends all the flavors. Toasted Spices: Quickly toast whole spices like cumin or mustard seeds and sprinkle over your curry for an extra touch.