Heat oil in a large saute pan over medium heat. Add crushed red pepper flakes and garlic and saute for 1 minute, or until garlic is fragrant.
Add the cherry tomatoes and jalapeño and cook, stirring occasionally, until they’re soft and blistering, but still hold their shape, about 12 minutes. Add in the vegetable stock, stir, and allow the mixture to come to a light simmer.
Stir in the basil, lemon juice, lemon zest, salt, and pepper and cook for 2 minutes. Transfer the sauce into a large bowl and set aside for later