Adding nut paste too early in cooking can lead to burning, sticking to the pan, and a bitter or unpleasant flavor. The sugars and oils in the nut paste caramelize and burn quickly at high temperatures.
Nut pastes, like peanut butter, almond butter, or tahini, contain natural sugars and oils. When exposed to high heat for extended periods, these components undergo rapid caramelization and eventually burn. This burning not only imparts a bitter taste to the dish but also causes the nut paste to stick to the bottom of the pan, making it difficult to clean. Furthermore, the intended flavor profile of the nut paste can be completely masked by the burnt taste, ruining the overall balance of the recipe. The timing of adding nut paste is crucial; it's generally best to add it towards the end of the cooking process, when the heat is lower and the other ingredients are mostly cooked. This allows the nut paste to blend in smoothly and contribute its flavor without burning.
To prevent burning, consider diluting the nut paste with a liquid like water, broth, or coconut milk before adding it to the pan. This helps to lower the concentration of sugars and oils, reducing the risk of burning and allowing for more even distribution of flavor.