Ever made shio koji butter? It is one of the easiest ways to bring fermented depth into a weeknight side dish, and roasted carrots are the perfect canvas for it. The koji breaks down the butter's proteins into savory glutamates while the carrots caramelize, so you end up with something that tastes far more complicated than it actually is. It's part of a whole family of compound-butter roasted vegetables in our kitchen, alongside kimchi butter roasted potatoes and roasted turnips with brown butter.
Ingredients
- 1 1/2 lbs carrots, peeled and halved lengthwise
- 3 tbsp unsalted butter, softened
- 1 tbsp shio koji
- 1 tbsp honey
- 1/2 tsp smoked paprika
- 2 tbsp chopped fresh dill
- Flaky salt to taste
Instructions
- Preheat oven to 400°F and line a sheet pan with parchment.
- In a small bowl, mash together the softened butter, shio koji, honey, and smoked paprika until smooth.
- Toss the carrots with half the koji butter and spread in a single layer on the sheet pan.
- Roast for 25 to 30 minutes, flipping halfway, until carrots are tender and browned at the edges.
- Toss the hot carrots with the remaining koji butter, then top with dill and flaky salt before serving.
Nutrition Facts (per serving)
| Calories | 150 |
| Total fat | 8g |
| Total carbohydrates | 19g |
| Dietary fiber | 4g |
| Protein | 2g |
| Sodium | 230mg |
Why This Is Good for Your Gut
Shio koji is fermented with Aspergillus oryzae, whose enzymes produce glutamic acid and small peptides that are easier on digestion than raw butter alone. Carrots contribute pectin and inulin-like fibers that resist breakdown until they hit the colon, giving Bacteroides species a steady food source and supporting short-chain fatty acid production. If you want to keep the carrot theme going, kombucha glazed roasted carrots is another fermented-forward take.
Butter this good almost makes vegetables feel like a treat.
This recipe is for informational purposes only and is not a substitute for professional dietary advice.
