Side: If you're making the orzo side dish, I usually do this as the sauce simmers, but you could make it at the start and leave at room temp until ready to serve. Just combine everything in a bowl, season to taste and adjust quantities if desired.
Prep Chicken: Horizontally slice each chicken breast right through the centre to make 4 even-sized breasts. Evenly sprinkle both sides of each breast with the seasoning.
Cook Chicken: Add a drizzle of oil to a large pan over medium-high heat. Add the chicken and fry both sides until lightly charred, with the centre white and piping hot. Remove and place on a plate wrapped in foil to keep warm.
Onion/Garlic: Lower heat to medium and melt in 1 tbsp butter. Add in the onion and fry until soft & golden, using your wooden spoon to gently scrape off any flavour stuck to the pan. Add garlic and fry for another min or so, then scrape everything into a blender.
Roasted Red Peppers: Squeeze out the brine from a jar of roasted red peppers (don't rinse them) then add in the blender too. Add in basil and chicken stock, then pop on the lid and blitz until smooth.
Sauce: Pour the sauce back into the pan and stir in cream. Gently simmer for 8-10mins to marry the flavours and thicken the sauce slightly, stirring every now and then. Stir in parmesan and taste for seasoning.
Serve: Add the chicken back in and baste in the sauce. Sprinkle over some small basil leaves and a pinch of chilli flakes (optional). Serve up and enjoy!