Preheat your oven to 400 degrees. While it’s heating up, prick the sweet potatoes all over with a fork. This step is essential as it allows steam to escape while baking.
Once the oven is ready, place the sweet potatoes directly on the rack. Bake them for 50 to 60 minutes until they are tender. You’ll know they are done when a fork easily pierces through them.
After baking, let the sweet potatoes cool for about 10 minutes. The skins should easily slip off when they are cool enough to handle.
Place the peeled sweet potatoes in a medium-sized bowl and mash them with a fork. Set them aside for later use in the soup.
In a medium soup pot, heat one tablespoon of the peanut oil over medium heat. Add the diced onion and sauté until just softened. The aroma will start filling your kitchen!
Add the chopped jalapeño and garlic to the pot. Sauté them together for about a minute, allowing the flavors to blend.
Next, stir in the Thai red curry paste, mixing it thoroughly with the other ingredients. You’ll notice the rich color and aroma intensifying.
Pour in the coconut milk and broth, stirring to combine everything. This is where the magic happens, creating a creamy base for your soup.
Add the prepared mashed sweet potatoes to the pot. Stir everything together until well combined, allowing the flavors to meld.
At this stage, you can either remove the pot from the heat and transfer the mixture to a food processor or blender, or you can use an immersion blender directly in the pot. Blend until smooth and creamy.
If you used a food processor or blender, pour the mixture back into the pot. Stir in the peanut butter, cilantro, and cayenne (if using), adding a pinch of salt and pepper to taste.
Finally, stir in the remaining peanut oil and adjust the seasoning as necessary. Serve this warm, garnished with chopped peanuts and more cilantro.
Now, let’s make those delicious peanut butter croutons! Toast each slice of whole wheat bread until golden brown. Once toasted, slather each piece generously with peanut butter.
Heat a skillet over medium heat, adding a tablespoon or so of butter or oil. Grill each peanut butter sandwich for 2 to 3 minutes per side, until they are crispy and golden.
Cut the grilled sandwiches into squares and serve them alongside your Thai Peanut Soup. Enjoy!