In their picture, using an iron skillet, the fruit still shows in the center when they took it out of the oven. 

For mine, using an 8×3 (interior measurements) round stoneware pan by Mel and Kris, the last of the blueberries disappeared beneath the waves sometime between the 35 and 40 minute mark, and I probably should have gone to 45 to get it solid like their video. Although note that I didn’t have any whole milk and substituted half 1% and half heavy cream.

We got a crispy-edged vanilla lava cake with blueberries and goodness flowing from the center. Which is setting somewhat as it cools–what there is left of it.

I might tone down the amount of sugar slightly next time, but this is definitely something I’d feed to company.