Sweetpotato: Baked Sweetpotato-Apple Puree with Horseradish

A useful, simple-to-make puree that reheats well, thanks to the addition of apple. To complement the fruit’s juiciness, use boniato or other relatively dry-fleshed sweets. Figure on 1 medium sweet and 1 apple per person to increase or decrease the recipe. Choose a mix of sweet and tart apples. The hot-sweet bite of fresh horseradish is particularly intriguing, but the puree adapts to other accents with ease: grated fresh ginger, chiles chipotles en adobo, wasabi, lime juice, balsamic vinega