Weigh and Prep Ingredients:
Assemble and weigh all components. Employ a kitchen scale for the flours. Cut 24 parchment squares, each 4x4 inches (10x10 cm). Do not scale this recipe up or down; prepare multiple batches if necessary.Soften Butter and Beat Eggs:
Soften 6 Tbsp unsalted butter in a microwave or small saucepan; allow to cool a bit. In a separate bowl, lightly beat 2 large eggs; reserve.Activate Yeast Mixture:
In a stand mixer bowl (or a large mixing bowl), whisk together 1 cup whole milk (heated to 110°F/45°C) and 1 tsp instant yeast. Add ½ tsp sugar from the measured ¼ cup; whisk again. Let sit for 5–10 minutes.Sift and Blend Flours:
Sift 320 g tapioca flour and 180 g all-purpose flour through a fine-mesh sieve into another large bowl; whisk to blend; set aside.Add Sugar and Eggs:
Attach the flat beater to the stand mixer. Pour the remaining sugar and the beaten eggs into the milk-yeast mixture.Add Melted Butter and Vanilla:
Add the melted butter and 1 tsp vanilla extract to the bowl.Mix on Low Speed:
Mix on low speed (Speed 2) for 1 minute until combined. Alternatively, stir with a wooden spoon.Incorporate First Flour Portion:
Add roughly 2 cups of the flour blend; mix on low until fully incorporated.Add Salt and Remaining Flour:
With the mixer still on low, gradually add ½ tsp salt and the rest of the flour mixture, one scoop at a time. The dough will become thick. Reserve the flour bowl for later greasing.Knead Dough Until Elastic:
Knead the dough on medium-high speed (Speed 6) for 3–4 minutes until smooth and elastic. The dough will be wet and sticky; do not incorporate extra flour. If kneading by hand, work for 5–6 minutes; if too sticky, add 1–2 Tbsp flour at most.Grease the Flour Bowl:
While the mixer runs, grease the reserved flour bowl lightly with oil using a paper towel.Stop Mixer and Check Dough:
After 3–4 minutes, stop the mixer when the dough is smooth, sticky, and stretchy.First Rise Until Doubled:
Use a dough scraper to remove the dough from the bowl; gather it into a mass and place it in the greased bowl. Smooth the top. Cover loosely with plastic wrap and place in a warm spot until doubled in size, about 70–80 minutes. An oven set to proof at 100°F (40°C) with a bowl of hot water works well. Ensure the temperature is not excessive.Heat Oil to Frying Temperature:
After 70–80 minutes, pour 4 cups safflower oil into a Dutch oven or heavy-bottomed pot. Attach a cooking thermometer with alarms set to 325°F (165°C) low and 350°F (175°C) high.Flour Work Surface and Hands:
Dust your work surface with 1–2 Tbsp all-purpose flour. Lightly flour your hands and the surface.Deflate and Shape Dough Log:
Turn the dough out onto the floured surface; sprinkle a little flour on top and press down to expel air bubbles.Cut Dough into Two Portions:
Using a dough scraper, shape the dough into a rough log; cut it into two equal portions.Shape One Portion into Ball:
Set one piece aside; shape the other into a ball and cover with plastic wrap. Cut the piece on the work surface into quarters and roll each into a ball. Work with one ball at a time, keeping the rest covered.Divide Ball into 24 Small Balls:
Each dough ball yields about 3 Pon de Ring donuts. Divide the first dough ball into 24 small balls, each ½–¾ inch (1.5 cm) in diameter and weighing 5 grams.Roll Small Balls Smoothly:
Quickly roll each small ball between your palms; avoid overworking. Use the dough scraper to lift any sticky bits.Assemble Donut Rings on Parchment:
Assemble the donuts: use 8 small balls per donut. Place one ball at a time onto a parchment square, arranging them in a ring and ensuring they touch. Each ring should weigh about 40 grams.Shape Remaining Rings:
Continue shaping the remaining rings.Brush Water and Rest Donuts:
Lightly brush water with a pastry brush where the balls meet to help them stay together during frying. Cover the donuts with a damp paper towel or light cloth; rest for 15–20 minutes. If the process takes long, refrigerate to slow proofing.Prepare Oil and Cooling Racks:
As you finish the last batch, heat the oil to 350°F (175°C). Line one baking sheet with paper towels and another with parchment topped with a wire rack.Lower Donut into Hot Oil:
Lift one parchment square with its donut; gently lower the donut (still on parchment) into the hot oil.Fry First Side for 1 Minute 15 Seconds:
Release the donut; start a timer for 1 minute 15 seconds for the first side. Fry only 2 donuts at once to keep the oil temperature stable.Flip and Fry Second Side:
When the timer sounds, quickly flip the donuts using chopsticks or tongs; fry the second side for 45 seconds. Carefully remove the parchment square.Drain and Transfer to Paper Towels:
After the second timer, retrieve the donuts with a skimmer or tongs; let excess oil drain. Transfer to the paper towel-lined sheet to absorb extra oil.