Create a fall favorite with the Best Scalloped Sweet Potatoes Recipe! Perfectly sweetened with marshmallows and pecans.
Set your oven to 400°F so it’s fully hot and waiting by the time the dish is assembled; this simple step keeps the rhythm of the kitchen moving and gives you time to slice and sauce without hurry.
Peel the sweet potatoes and slice them into uniform, thin medallions—aim for consistent thickness so they cook evenly. Neatly arrange the rounds in a round, fluted white ceramic baking dish in overlapping concentric rows, working from the outer rim toward the center to create a pretty spiral pattern; tuck any stray slices so the surface looks composed and deliberate. Keep the peeler or chef’s knife nearby as the active tool, resting with a few orange peel ribbons beside it to show progress.

In a saucepan off the heat, combine the butter, brown sugar, water and the warm spices—cinnamon, cloves, nutmeg—and a pinch of salt until everything melds into a glossy, aromatic glaze. Stir until the sugar dissolves and the mixture becomes syrupy and smooth, then transfer it into a small clear glass jug and a reserve ramekin so you have one vessel for brushing and one for finishing. A wooden spoon with glaze clinging to it should rest inside the saucepan as the active tool; avoid showing any stove or burners. This concentrated, shiny sauce will both flavor and slightly caramelize the potatoes as they bake.

Using a pastry brush, coat the arranged sweet potato medallions with about three-quarters of the spiced sauce so the rounds glisten but are not swimming in liquid. Cover the baking dish tightly with foil and bake until the slices are semi-tender—soft enough to yield slightly to a fork but still holding their round shape, with the sauce beginning to sink into the edges and tiny bubbles forming where it pooled. After the bake, remove the foil and let the dish rest a moment so the surface settles; a used pastry brush with sticky bristles can sit beside the dish as the active implement.

Pour the reserved sauce gently over the semi-tender medallions so it seeps into the layers, then scatter the chopped pecans and a generous handful of mini marshmallows across the top in an even, inviting layer. The pecans should look glossy from a light touch of sauce and the marshmallows pristine and pillowy—this is the built moment of contrast between nutty crunch and pillowy sweetness before any broiling. Keep the small sauce jug and a scattering spoon as the active tools in-frame to emphasize continuity of process.

Broil just until the marshmallows puff and toast to a golden-brown top and the pecans take on a deeper amber tone; the edges of the sweet potato medallions will caramelize lightly, showing tiny browned rims and a glossy glaze pooling in the valleys between slices. Plate is warm and aromatic; arrange a soft sage-green linen napkin and matte gold fork nearby for an inviting, homey finish. Serve immediately so the contrast between the crisped top and the velvety, tender sweet potatoes beneath is at its best.
