Freshly churned out churros for $1.50/1 pc, $5/4 pc. The filling is "made to order", where you choose between strawberry, caramel or chocolate (or plain, if you want), and they squeezee some of that filling into your hollow churro, and hand it to you while it's still piping hot. The entire experience in there only lasted about 1 minute, and the churros lasted another 2 minutes/20 steps. So, in the span of 3 minutes, Pancho's has gained a fan.
So delicious and such a cheap little treat, in the middle of Kensington!