In the bowl of the Ooni Halo Pro Spiral Mixer, whisk together 11/2 cups (188 grams) flour, sugar, salt, yeast, and pepper by hand until combined. Attach dough hook and breaker bar.: The aroma of dry ingredients is subtle but you can sense the salt and pepper when you bring them close. Whisking evenly distributes yeast and seasonings, which prevents pockets of salt or yeast that could affect the rise. Attaching the dough hook and breaker bar sets you up for consistent mixing later. A common mistake is adding yeast directly to very warm liquids later, which can kill it, so pre mixing keeps things balanced.
In a medium saucepan, heat 1/2 cup (120 grams) water, sour cream, and butter over medium-low heat, stirring frequently, until butter is melted and an instant-read thermometer registers 120°F (49°C) to 130°F (54°C). Add sour cream mixture and 1 egg (50 grams) to flour mixture; beat at medium-low speed, 30%, until combined, 1 to 2 minutes, stopping to scrape sides of bowl. With mixer on medium-low speed, 30%, gradually add 13/4 cups (219 grams) flour and chives, beating just until combined and stopping to scrape sides of bowl. Slowly increase mixer speed to medium, 50%. Beat until a soft, elastic dough forms, 6 to 10 minutes. Dough will pull away from sides of bowl and gather around the dough hook, and a small piece of dough will stretch until thin and translucent without tearing. Add up to remaining 1/4 cup (31 grams) flour, 1 tablespoon (8 grams) at a time, if dough is too sticky.: You will see the butter fully melt and the mixture steam gently without simmering. Aim for that warm temperature range because it ensures the mixture is comfortable to the touch and safe for the yeast and eggs you will add. This step adds richness and allows the sour cream to integrate without curdling. Avoid overheating, because too hot a mixture will cook the egg or kill the yeast.
Lightly spray a large bowl with cooking spray. Place dough in bowl, turning to grease top. Cover and let rise in a warm, draft-free place (75°F/24°C) until doubled in size, 30 to 45 minutes.: Once the wet mix hits the dry, the bowl will give off a faint dairy scent, and the batter will begin to come together. Beating at a low speed helps hydrate the flour gradually, avoiding a dry outer ring. Scraping the bowl is important so no dry pockets of flour remain. If you skip scraping, you risk uneven texture and under developed gluten.
Spray a 12-cup muffin pan with cooking spray.: As you bring in more flour and the chives , the dough will become thicker and flecked with green. The dough should still be tacky but not overly wet. Gradual addition allows you to feel when the dough reaches the right consistency. A frequent error is adding all the flour at once, which can lead to a dense dough or over mixing.
Turn out dough onto a clean surface, and divide into 36 portions (about 21 grams each). Shape each portion into a ball; place 3 dough balls in each prepared muffin cup. Cover and let rise in a warm, draft-free place (75°F/24°C) until puffed, about 30 minutes.: During this period the dough will change noticeably, becoming smoother and slightly glossy as gluten develops. You can do the windowpane test by stretching a small piece of dough to see if it becomes thin and translucent. The sound from the mixer will soften and the dough will gather around the hook. Over kneading will make the dough tight and tough, so watch the texture more than the clock.
Preheat oven to 375°F (190°C).: That translucent stretch is the best indicator that gluten is developed. If the dough is sticking excessively to your fingers, add small increments of flour and observe the feel. Adding too much flour can dry the dough, so take it slow. A common trap is assuming stickiness means under kneaded when it could simply mean slightly higher humidity.
In a small bowl, whisk together remaining 1 egg (50 grams) and remaining 1 tablespoon (15 grams) water; brush onto dough.: As the dough rests, yeast activity produces a sweet, yeasty smell and the dough will visibly expand and soften. Turning the dough in the greased bowl helps prevent a skin forming. If your kitchen is cooler, allow extra time or find a warm corner; if too warm, the dough can over proof and collapse. A mistake to avoid is rushing this step because under proofed dough will be dense after baking.
Bake until golden brown and an instant-read thermometer inserted in center registers at least 190°F (88°C), 10 to 12 minutes. Brush Garlic-Chive Butter onto hot rolls; serve warm with remaining butter.: Greasing the pan ensures the clover rolls release easily after baking and helps develop slightly crisp edges where dough meets the metal. You should notice a sheen on the pan when it is properly prepared. Skipping greasing can result in tearing when removing the rolls, and it will affect presentation.
In a small bowl, stir together all ingredients until smooth. Refrigerate in an airtight container for up to 2 weeks.: Dividing into uniform portions ensures even baking. As you roll the balls, the dough should feel smooth and slightly springy. Three small rolls per cup form the clover shape as they proof and expand. Uneven portions will bake at different rates, so weigh or estimate portions carefully to avoid some being under or over baked.
Preheat oven to 375 F (190 C): The oven should reach temperature before you put the rolls in so they get an immediate lift and set their crust. You will notice a dry, warm smell when the oven is ready. Placing the rolls into a cold oven can make them bake unevenly and produce a dense crumb.
In a small bowl, whisk together remaining 1 egg (50 grams) and remaining 1 tablespoon (15 grams) water; brush onto dough: The egg wash creates that glossy, golden exterior and helps the butter adhere after baking. Brush gently so you do not deflate the proofed rolls. Over brushing can weigh down the dough and affect final height.
Bake until golden brown and an instant read thermometer inserted in center registers at least 190 F (88 C), 10 to 12 minutes. Brush Garlic Chive Butter onto hot rolls; serve warm with remaining butter: As the rolls bake you will see them rise and the tops turn a warm golden color, releasing a buttery, herb laden aroma. Using an instant read thermometer ensures the centers are fully cooked without over browning. Immediately brushing the hot rolls with the Garlic Chive Butter melts the spread into the crust, giving a shiny, savory finish. A typical mistake is removing them too soon, which leaves the centers gummy, or leaving them too long, which dries them out.
In a small bowl, stir together all ingredients until smooth. Refrigerate in an airtight container for up to 2 weeks: The compound butter will smell vibrantly of garlic and chives when mixed. Chilling firms the butter so it is easy to spread or warm for brushing. Keep it sealed to preserve flavor and avoid absorbing other fridge odors. Failing to cool the butter properly can lead to separation or lost texture.