Swiss Chard
10.0Tender stems and soft greens
Sauce work uses bok choy as a body-builder: pureed leaves thicken via pectin and cellulose, contributing roughly 2% solids and a green vegetal note that needs cream or stock to round out. Emulsion stability matters because the puree breaks above 185°F if reduced too hard. Rank candidates by how cleanly they blend at 140°F, whether they hold viscosity through a 10-minute reduction, and whether the green color shifts to olive-drab during the hold.
Tender stems and soft greens
Blanched chard purees to a stable 2.5% solids puree at 140°F, slightly thicker than bok choy. Use 1:1 cup. Hold the reduction under 180°F — past that the magnesium in chlorophyll swaps for hydrogen and the sauce shifts from grass-green to olive within 4 minutes.
Mimic crunchy stalks, add greens separately
Celery purees thinner than bok choy — roughly 1.5% solids — so reduce 20% longer to hit equivalent coating viscosity. Use 1:1 cup. Strain through a chinois because the long parallel fibers don't break down fully even after 10 minutes in a high-speed blender at 60°C.
For the leafy part, cooks fast
Spinach gives a brighter green sauce but holds emulsion poorly above 165°F because its pectin chains are shorter. Use 1:1 cup, blend at 140°F with a tablespoon of cream per cup as a stabilizer, and serve within 15 minutes — color drifts to khaki faster than bok choy.
Peppery, add at end for fresh crunch
Watercress sauce reads like a bok choy puree with a horseradish edge — keep the blender below 50°C or the volatile mustard oils boil off in 90 seconds. Use 1:1 cup. The viscosity matches closely, around 2% solids, but pair it with milder proteins like halibut not lamb.