In a large bowl, or the bowl of a stand mixer with dough hook attachment, add the yeast, sugar and warm water and let sit to 'bloom' for 10 minutes. It should look bubbly. Then add the butter, both types of flour and seasoning and bring together. Once a shaggy dough has formed, knead for 10 minutes by hand or 5-7 mins in the mixer (on medium).
The dough should form into a ball, but will be a little springy. Lightly oil the bowl you just used, place the dough back into it, cover with a tea towel and let rest in a warm place for 1 hour + (until doubled in size).
Lightly oil a 2lb loaf tin. Roll the dough to a 14x14 square. In a bowl, combine the cream cheese, garlic and Italian seasoning. Spread this over the dough in an even layer. Top with the chilli jam - we want a thin layer. Then top with the cheese
Cut 3 strips lengthways and 4 widths - leaving you with 12 squares. Stack these up, one on top of the other, then place into the tin. Let rest 30 mins
Preheat the oven to 200C/180C Fan/Gas 6. Brush over the remaining pesto garlic butter over the top before baking for 45-50 minutes. It should be a golden brown on top.
Brush with some melted butter and serve warm!